Joint pad

The joint pad design with complementary parallel side surfaces and angled fittings addresses uneven installation and deformation issues, providing quick alignment and durable support through precise fitting and material selection.

JP2026028248APending Publication Date: 2026-02-19郭春富
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Patent Information

Application Number
JP2025131186
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-06
Filing Date
2025-08-06
Publication Date
2026-02-19

AI Technical Summary

Technical Problem

Conventional joint pads suffer from uneven installation surfaces, vertical fitting issues, and lack of support at the joint edges, leading to permanent deformation under pressure.

Method used

A joint pad design featuring two body layers with complementary parallel side surfaces and angled fittings that allow for quick and accurate alignment, ensuring flatness and preventing deformation, using materials like rubber or plastic with varying hardness for enhanced support.

Benefits of technology

The design ensures fast and precise installation with a flat, durable surface and reduces permanent deformation at the joint edges by distributing pressure effectively.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a joint pad capable of quick and accurate fitting and positioning, avoiding the occurrence of pressure receiving recessed permanent deformation by surface flatness and excellent support, and being easily and quickly processed.SOLUTION: The joint pad includes two body layers. Each of the body layers includes a top surface, a bottom surface, a first side surface and a second side surface. The first side extends linearly the entire length between two opposite edges of each of the body layers, and the first side includes a first surface and a respective second surface. The first surface extends from each of the top surfaces toward the bottom surface, and the second surface is inclinedly connected between the bottom surface and each of the first surfaces. The first side surface of one of the body layers and the second side surface of the other of the body layers are parallel to each other and complementarily jointed in shape, the top surfaces of the two body layers are located on the same side of the jointing pad, the first surface and the second surface of one of the body layers form a convex engaging angle, the second side surface of the other of the body layers forms a concave engaging angle, and the convex engaging angle and the concave engaging angle are attached and engaged with each other.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a pad, and more particularly to a joint pad. [Background technology]

[0002] Pads are widely used in various places (e.g., game room environments, exercise environments, work environments, etc.) and for different needs (e.g., shock absorption, buffering, sound insulation, etc.) Since these environments generally have large areas, connectable pads have been developed, which can be connected according to the size of the required installation area, which is convenient, fast, and economical.

[0003] The sides of conventional joint pads include multiple male and female protrusions, which can be fitted together to join multiple pads. However, the sides of conventional joint pads are all vertical, which can result in uneven installation surfaces or different vertical fitting depths, easily causing unevenness in the overall surface after joining. Furthermore, the edges of multiple pads are independent of each other in the vertical direction and cannot provide support for each other, so the joint edges are prone to denting under pressure and permanent deformation.

[0004] Therefore, there is a need to provide a new and innovative joint pad to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] The main object of the present invention is to provide a joint pad that can be fitted and positioned quickly and accurately, effectively ensures the flatness of the surface after joining, provides good support, and effectively prevents permanent deformation due to pressure-bearing depressions at the joint edge, and is easy and quick to process. [Means for solving the problem]

[0006] To achieve the above object, the present invention provides a joint pad, which includes two body layers, each body layer having a top surface, a bottom surface, a first side surface, and a second side surface, the second side surface and the first side surface being parallel to each other and complementary in shape, the first side surface extending linearly the entire length between two opposing end sides of the body layer, the first side surface having a first surface and a second surface, the first surface extending from the top surface toward the bottom surface, the second surface being connected at an angle between the bottom surface and the first surface, the first side surface of one body layer and the second side surface of the other body layer being parallel to each other and complementary in shape, the top surfaces of the two body layers being located on the same side of the joint pad, a convex fitting angle being formed on the first surface and the second surface of one body layer, and a concave fitting angle being formed on the second side surface of the other body layer, the convex fitting angle and the concave fitting angle being bonded to each other. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of an embodiment of the present invention; [Figure 2] 1 is a schematic diagram of a joint according to one embodiment of the present invention; [Figure 3] 1 is a cross-sectional view of an embodiment of the present invention. [Figure 4] FIG. 4 is a partially enlarged view of FIG. [Figure 5] FIG. 10 is a partially enlarged view of another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] Possible embodiments of the present invention will now be described by way of examples, which are not intended to limit the scope of the invention.

[0009] 1 to 4 show one embodiment of the present invention. The joint pad 1 of the present invention includes two body layers 10, each of which includes a top surface 11, a bottom surface 12, a first side surface 13, and a second side surface 14. The second side surface 14 and the first side surface 13 are parallel to each other and complementary in shape, and the first side surface 13 extends linearly the entire length between two opposing end edges of the body layer 10. The first side surface 13 includes a first surface 131 and a second surface 132, and the first surface 131 extends from the top surface 11 toward the bottom surface 12, while the second surface 132 is connected at an angle between the bottom surface 12 and the first surface 131. The first side surface 13 of one body layer 10 and the second side surface 14 of the other body layer 10 are joined parallel to each other and complementary in shape, and the top surfaces 11 of the two body layers 10 are located on the same side of the joint pad 1. Two opposing sides of the two body layers 10 may be provided with a first surface 131 and a second surface 132 that are parallel to each other and complementary in shape, and two opposing sides of the two body layers 10 may be provided with a first surface 131 and a second surface 132 that are parallel to each other and complementary in shape, thereby enabling jointing in the longitudinal direction and the lateral direction, respectively. However, each of the two body layers 10 may have other shapes, for example, include more than four sides.

[0010] The inclined and curved sides of the body layers 10 allow for quick and accurate fitting and positioning, effectively ensuring the flatness of the surface after joining and providing good support, effectively preventing permanent deformation due to pressure-induced depressions at the joint edges. Furthermore, the first side 13 of one body layer 10 and the second side 14 of the other body layer 10 can be simultaneously formed by a single cutter in a single operation along a direction parallel to the first side 13. The blade of the cutter preferably extends in the same direction as and parallel to the first side 13, and the cutting method may be vibration cutting, thermal melt cutting, laser cutting, or other methods. This allows the raw material sheet to be cut just once to simultaneously obtain two parallel and complementary side surfaces of the joint pad, eliminating the need for multiple cutters, the need to invert or move the raw material sheet to be cut, and the need to destroy or remove part of the raw material sheet. The process is also easy and fast, saves materials, and ensures a complete structure and accurate dimensions.

[0011] Each body layer 10 includes at least one flexible layer, which may be made of a foamed material such as rubber, plastic, or silica gel. Different materials can be selected according to different functionalities or usage requirements (such as shock absorption, sound insulation, cushioning, etc.). In this embodiment, each body layer 10 includes multiple flexible layers. That is, the at least one flexible layer includes a first flexible layer 10a and a second flexible layer 10b, where the first flexible layer 10a includes the top surface 11 and the second flexible layer 10b is adjacent to the first flexible layer 10a and includes the bottom surface 12. Optionally, at least one of the first flexible layer 10a and the second flexible layer 10b may have a multi-layer structure, and the first flexible layer 10a and the second flexible layer 10b may be made of the same or different materials, have the same or different densities, and have the same or different hardnesses. In this embodiment, the first flexible layer 10a has a single-layer structure.

[0012] In this embodiment, at least two of the flexible layers have different hardnesses, for example, the hardness of the first flexible layer 10a is greater than that of the second flexible layer 10b, which provides good support and reduces the problem of dent deformation of the joint pad 1. Preferably, the hardness of the top layer of the body layer 10 is greater than that of the adjacent flexible layer, and the second surface 132 extends from the bottom surface 12 into the first flexible layer 10a, so that the fitting positioning portion of the body layer 10 is located in the flexible layer with a relatively greater hardness, which can greatly improve fitting precision and support capacity and provide excellent dent deformation resistance in the vertical and horizontal directions.

[0013] Furthermore, a convex fitting angle 133 is formed on the first surface 131 and the second surface 132 of one of the body layers 10, and a concave fitting angle 141 is formed on the second side surface 14 of the other body layer 10. The convex fitting angle 133 and the concave fitting angle 141 are attached to each other and fitted together, thereby enabling quick and accurate fitting and positioning. The convex fitting angle 133 and the concave fitting angle 141 are adjacent to the top surface 11, and the convex fitting angle 133 is located on the single first flexible layer 10a, and the convex fitting angle 133 and the concave fitting angle 141 may be an acute angle or an arc angle. More specifically, the height of the first surface 131 is approximately 1.5 to 2.0 cm, the included angle θ1 between the first surface 131 and the top surface 11 is 90 degrees, and the included angle θ2 between the second surface 132 and the bottom surface 12 is 105 to 165 degrees. The included angle θ1 between the first surface 131 and the top surface 11 is 90 degrees, which can effectively align the two body layers 10 and prevent horizontal misalignment of the two body layers 10. The included angle θ2 between the second surface 132 and the bottom surface 12 is 105 to 165 degrees (e.g., 135 degrees), which helps guide the two body layers 10 to slide relative to each other to the correct mating position, and can distribute applied force and avoid stress concentration.

[0014] In one possible embodiment, the joint pad 1 may further include a covering layer 20, which is a fiber layer or a thin film layer provided on the body layer 10. According to different functions and usage requirements, the covering layer 20 may be, but is not limited to, a water-absorbing layer, a waterproof layer, or an anti-slip structural layer. However, in another possible embodiment, as shown in Fig. 5, the body layer 10 of the joint pad 1a may include a first flexible layer 10a and a second flexible layer 10b, and the body layer 10 may not be provided with a covering layer. [Explanation of symbols]

[0015] 1, 1a joint pad 10 Main layer 10a 1st flexible layer 10b Second flexible layer 11 Top surface 12 Bottom 13 First side view 131 First Surface 132 Second Surface 133 Convexed corner 14 Second side view 141. Concave corner 20 Covering layer Angle between θ1 and θ2

Claims

1. A joint pad, the first side extends linearly over the entire length between two opposing end sides of the body layer; the first side includes a first surface and a second surface; the first surface extends from the top surface toward the bottom surface, and the second surface is connected at an angle between the bottom surface and the first surface; the first side of one body layer and the second side of the other body layer are joined parallel to each other and complementary in shape; and the top surfaces of the two body layers are located on the same side of the joint pad; A convex fitting angle is formed on the first surface and the second surface of one of the main layers, and a concave fitting angle is formed on the second side surface of the other main layer, and the convex fitting angle and the concave fitting angle are bonded to each other and fitted together. Joint pad.

2. The joint pad according to claim 1, wherein each of the body layers includes at least one flexible layer, the at least one flexible layer is a foam structure, and the foam structure is made of a rubber material, a plastic material, or a silica gel material.

3. 3. The joint pad according to claim 2, wherein the at least one flexible layer comprises a first flexible layer and a second flexible layer, the first flexible layer comprising the top surface, and the second flexible layer adjacent to the first flexible layer and comprising the bottom surface.

4. The joint pad according to claim 3, wherein the first flexible layer has a single-layer structure, and the hardness of the first flexible layer is greater than the hardness of the second flexible layer.

5. 5. The joint pad of claim 4, wherein said second surface extends from said bottom surface into said first flexible layer.

6. The joint pad according to claim 1 , wherein each of the body layers includes a plurality of flexible layers, at least two of the plurality of flexible layers having different hardnesses.

7. 7. The joint pad according to claim 1, wherein the angle between the first surface and the top surface is 90 degrees, and the angle between the second surface and the bottom surface is 105 to 165 degrees.

8. The joint pad according to any one of claims 1 to 6, wherein the convex fitting angle and the concave fitting angle are adjacent to the top surface, and the convex fitting angle is located on only a single first flexible layer.

9. The joint pad according to any one of claims 1 to 6, further comprising a covering layer, the covering layer being provided on the main body layer and being a fiber layer or a thin film layer.

10. 7. The joint pad according to claim 1, wherein the first side surface of one of the main body layers and the second side surface of the other of the main body layers are simultaneously formed by a single cut with a single cutter along a direction parallel to the first side surface.